Based on the value of your variables, Graphext will automatically set the data types for each column in your data. These data types identifications are generally accurate but you might want to set your own.
Variables are the entities in your data. They group values like age, sex or country into organized columns. Because columns contain similar values, the values that they contain can be given a type.
Categorical variables contain values that fall into categories. Nationality is a categorical variable because there are a set number of possibilities that a nationality value can have.
Date variables, perhaps unsurprisingly, contain dates. They can be used to plot trends charts.
Text variables contain combinations of letters, numbers and other characters. They can be different for every value in a column.
Quantitative variables contain numbers. You can apply mathematical filtering or aggregation on these values.
URL variables contain links to pages or content on the internet.
Click on a dataset in the 'Datasets' of your Graphext workspace to see the details behind it. You can change the types of variables from here.
The colored bar between the variable name and its type represents the probability that every value in a column can be attributed to the chosen variable type.
We know that data isn't always clean and simple.
Have a look through these topics if you can't see what you are looking for.